What is the most lucky thing that ever happend to you?

Luckiest thing that has ever happened to me actually happened when I was about 7 years old. My family and I went up to some snowy mountains to sled. There was actually a cliff nearby. To make a story short, I wasn't being careful and my sled started heading towards the cliff's edge. Luckily, a rock buried in the snow stopped my sled before going over the edge.